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Finnair flights from London to Detroit Metropolitan Wayne County Airport (LON - DTW)

LON — DTW
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from London to Detroit on Finnair typically fly into Detroit Metropolitan Wayne County and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to Detroit in 2025

Find detailed information about Finnair flights from London to Detroit. Explore the options provided by Finnair to plan your journey from London to Detroit. Data last updated 23 December 2025.

One-way from

£513

Return from

£500

Popular in

August

Cheapest in

November

Average price (all airlines)

£816
Finnair
  • Finnair
  • 6/4
  • 1 total stop
  • 17h 22m total
  • London to Detroit
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Finnair
  • Finnair
  • 16/5-30/5
  • 2 total stops
  • 28h 53m total
  • London to Detroit
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Highest demand for flights from London to Detroit Metropolitan Wayne County; 8% potential price increase.
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Best time to find cheap flights from London to Detroit Metropolitan Wayne County; 1% potential price drop.
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Average price for all London to Detroit Metropolitan Wayne County flights (one-way and round-trip).
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  • Can I get a flight from London to Detroit Metropolitan Wayne County Airport on Finnair for under £819?

    Cheapflights users have found 2 Finnair flights for under £819 on the LON-DTW route. Prices on flights to Detroit Metropolitan Wayne County Airport from London can vary based on many factors including dates. To look at price based on your preferred dates, click here.

  • How do most travelers feel about Finnair?

    The general consensus from 1,339 Cheapflights users is that Finnair is a 7.6/10. Select your travel dates above for updated prices on flights from London to Detroit Metropolitan Wayne County Airport (LON-DTW).

Find Finnair flight deals from London to Detroit

Enter your travel dates to find the best prices.

Best Finnair flights from London to Detroit
Discover carefully curated Finnair flight deals from London to Detroit that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 December 2025.

Sat 16/514:25LHR - DTW
1 stop13h 20mFinnair
Sat 30/513:57DTW - LHR
1 stop15h 33mFinnair
Deal found 22/12£500
Mon 18/512:15LHR - DTW
1 stop15h 30mFinnair
Mon 8/617:23DTW - LHR
2 stops31h 52mFinnair
Deal found 22/12£720
Thu 11/612:15LHR - DTW
1 stop15h 45mFinnair
Sun 14/617:23DTW - LHR
2 stops35h 52mFinnair
Deal found 21/12£823

Travel insights for Finnair flights from London to Detroit

Get recent, data-driven insights about Finnair flights from London to Detroit including ideal travel times, pricing trends, and more.

Rainfall in Detroit by month

Plan your trip to Detroit by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Detroit Metropolitan Wayne County Airport ranges from 46.0 - 79.0 inches per month. August is typically the wettest month, when rainfall can reach 79.0 mm. January is typically the driest time to visit Detroit Metropolitan Wayne County Airport when rainfall is around 46.0 mm.

Temperature in Detroit by month

Plan your trip to Detroit by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Detroit Metropolitan Wayne County Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -4.0 C).

Best time to book a flight from London to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Browse thousands of different options on Cheapflights for your next trip

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Fly from London to Detroit on another airline

Consider alternative airlines that service the Detroit area. Flight routes are based on user searches made on Cheapflights and were last updated on 23 December 2025.
KLM flights from London to Detroit Metropolitan Wayne County
Virgin Atlantic flights from London to Detroit Metropolitan Wayne County

See what others are saying about Finnair

Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 23 December 2025.
Finnair
7.6
Good
1,339 reviews
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Overview

Food

6.7

Entertainment

6.9

Comfort

7.4

Crew

8.1

Boarding

7.6

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